Process of purifying chicle, gum, or other adhesive.



No. 831,041. PATENTED SEPT. 18, 1906. S. A. DAVIS 85 F. V. OANNING. PROCESS FOR PURIFYING GHIGLE, GUM, OR OTHER ADHESIVES APPLIGATION FILED OGT.31.1905.

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UNITED STATES PATENT OFFICE.

STEPHEN A. DAVIS AND FRANKLIN V. CANNING, OF NEW YORK, N. Y.

PROCESS FOR PURIFYING CHICLE, GUM, OR OTHER ADHESIVE.

Specification of Letters Patent.

Patented Sept. 18, 1906.

Application filed October 31, 1905. Serial No. 285,868.

To (tZZ whom it may concern.-

Be it known that we, STEPHEN A. DAVIS, residing in the borough of Manhattan, and FRANKLIN V. CANNING, residing in the borough of Brooklyn, in the city, county, and State of New York, citizens of the United States, have invented new and useful Improvements in Processes for Purifying Chicle, Gum, or other Adhesive, of which the following is a specification.

Our invention relates to the process of purifying chicle, gum, or other adhesive by using rolls or rods heated to a temperature which overcomes the adhesive properties, and has for its object to render the process more expeditious and in addition thereto to turn out the product in an absolutely pure state at a reduced cost.

T he foregoing and other features of our invention will now be described in connection with the accompanying one sheet of drawings, in which we have represented our screening device embodying part of the process in the preferred form, after which we shall point out more particularly in the claims those fea tures which we believe to be new and of our own invention.

Figure I is an isometric view of a machine used in screening the material. Fig. II shows another and simpler method of accomplishing the same end.

The chicle or gum is collected full of dirt, wood, bark, &c., which has to be removed and the chicle purified before it can be used for confectionery purposes. The adhesive property of chicle makes it impossible to strain through a sack or cloth by hand or mechanical means except the rolls or rods, between which the screening-bag passes, is heated to or about the temperature of the chicle or gum to be strained.

Referring more particularly to Fig. I, 1 and 2 are two hollow rollers mounted in sliding bearings 3 and are adjustable inwardly and outwardly by the hand-wheel 4, worms 5, gears 6, and right and left screws, (not shown,) all of which are mounted in the frame 7, carried on supports 8. The handwheel 9 and shaft 10, mounted in bearings 11 on brackets 12, is to support the screeningbag 13 and provide means to raise the bag as required. One end of the hollow roll 2 is provided with a steam-inlet 15. The opposite. end is connected, by means of a flexible conthe work just as well.

nection 14, to hollow roll 1. The other end of roll 1 is provided with a steam-outlet 16. Power is transmitted to the rolls 1 and 2 by the gears 17 and 18. In Fig. II a simpler method is illustrated, in which 13 is the screening-bag, 1 and 2 are heated rolls, and 10 a support for the bag 13.

In our process the chicle or gum to be purified is thoroughly cooked and brought to a temperature of flow (150 to 350 Fahrenheit) and is then placed in a foraminous screening-bag 13, preferably scrim, and passed between rollers or rods heated to a temperature of the chicle. The rolls are heated only to prevent the chicle from adhering to them while being forced through the screening-bag. The heating of the rolls has no effect whatever upon the cooking of the chicle. We intend to use hollow, adjustable compression-rollers, internallyheated by steam passing through them, (see Fig. 1;) but we do not want to limit ourselves to that construction, because externally-heated rods or rolls to prevent the screening substance from adhering to them, used by hand,will do (See Fig. II.)

We are aware that a screening-bag and rollers have been used before for straining seeds out of fruit-syrups; but we do not know of a process using heated rolls, and upon this important departure from the present art we base our claims.

Having fully described our invention, What we claim as new, and desire to secure by Letters Patent, is

1. The process of purifying chicle, gum or other adhesive consisting of cooking the material and bringing the mass to a temperature of flow, placing it in a bag and passing the same between heated compression rollers or rods.

2. The process of purifying chicle, gum or other adhesive consisting of cooking the material and bringing the mass to a temperature of flow, placing it in a foraminous screening bag or sack and passing the same between internally steam heated, adjustable compression rollers or rods.

This specification signed and witnessed this 9th day of August, A. D. 1905.

STEPHEN A. DAVIS. FRANKLIN V. CANNING. In presence of Enwn. VAN WINKLE, JosEPI-r Conn. 

